Skip to Main Content
Interactions between past land use, life-history traits and understory spatial heterogeneityAuthor(s): Jennifer M. Fraterrigo; Monica Turner; Scott M. Pearson
Source: Landscape Ecology, Vol. 21: 777-790
Publication Series: Scientific Journal (JRNL)
PDF: Download Publication (2.19 MB)
DescriptionPast land use has contributed to variability in the distribution of herbaceous species by reducing plant abundance and altering species' chances of recolonizing suitable habitat. Land use may also influence plant heterogeneity by changing environmental conditions within stands. We compared the variability of understory herb abundance in southern Appalachian forests with different land-use histories to examine how past land use influenced plant heterogeneity. The cover of eleven focal species or genera was estimated and mineral soil concentrations were determined during 2001 and 2002 in eight stands that were farmed, logged, or had no disturbance history (reference) in western North Carolina. Analysis of the coefficients of variation revealed that the abundance of understory plants was more heterogeneous in disturbed stands compared with reference stands. However, when nutrient availability differences were accounted for by detrending the plant cover data, understory variability within stands declined, and no differences between disturbed and reference stands could be distinguished. This finding suggests that nutrient availability has important effects on plant heterogeneity, which depend on past land use. Species dispersal, seed size, and phenology also explained variability in the spatial heterogeneity of plants, but generally only before soil nutrient differences were statistically controlled. In addition to demonstrating that past land use has longterm effects on plant heterogeneity, these results indicate that soil nutrients may play different roles in determining vegetation patterns in historically altered and unaltered forests.
- You may send email to firstname.lastname@example.org to request a hard copy of this publication.
- (Please specify exactly which publication you are requesting and your mailing address.)
- We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
- This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.
CitationFraterrigo, Jennifer M.; Turner, Monica, G.; Pearson, Scott M. 2006. Interactions between past land use, life-history traits and understory spatial heterogeneity. Landscape Ecology, Vol. 21: 777-790
- Previous land use alters plant allocation and growth in forest herbs
- Use of comparison areas rather than controls in a study of fuels in invaded forests of the northeast and mid-Atlantic states
- Patterns of exotic plant invasions in Pennsylvania's Allegheny National Forest using intensive Forest Inventory and Analysis plots
XML: View XML